SUNSTONE ROUGH TANZANIA 26.50 CTS [F2768]
- 存货单位
- 尺寸(毫米)
- 20.000 x 17.000 x 13.000mm
- 重量 (cts)
- 26.500
- 类型
- Rough
- 颜色
-
QUALITY ROUGH
SUNSTONE ROUGH
This is a natural untreated rough specimenfrom Tanzania Africa showing the firey flash it is known for.
It is also known as Labradorite feldspar.
Weight 26.50 cts app
Size 20 x 17 x 13 mm app
Note photo taken with the rough wet.There are natural fractures in the stone[which is common for this type of material] so it will cut smaller stones.Visit SEDA GEMS to see some stones cut from this parcel.
Sunstone contains inclusions of copper crystals. Sunstone can be found as large as three inches across. The copper leads to varying color within some stones, where turning one stone will result in multiple colors. The more copper within the stone, the darker the complexion
Sunstone is a plagioclase feldspar, which when viewed from certain directions exhibits a brilliant spangled appearance; this has led to its use as a gemstone. It has been found in Southern Norway,tanzania and in some United States localities. It is the official gemstone of Oregon.
GRADING The first factor in grading is the amount of Schiller[a sub -surface iridescent shimmer]The more schiller the less the stone reflects and shimmers as it blocks suns rays.The next grade is for colour as it can be found in red ,green.yellow,pink and orange.
Sunstone with high amounts of schiller are great for carvings.
The optical effect appears to be due to reflections from enclosures of red haematite, in the form of minute scales, which are hexagonal, rhombic or irregular in shape, and are disposed parallel to the principal cleavage-plane. These enclosures give the stone an appearance something like that of aventurine, whence sunstone is known also as “aventurine-feldspar.” The optical effect called shiller and the color in Oregon Sunstone is due to copper. In the middle part of this crystal, it sparks a lot, and usually has a dark color in the middle, and the color becomes lighter as it becomes the outer part.
More Information
- 存货单位
- 尺寸(毫米)
- 20.000 x 17.000 x 13.000 mm
- 重量 (cts)
- 26.500
- 类型
- Rough
- 颜色
-
QUALITY ROUGH
SUNSTONE ROUGH
This is a natural untreated rough specimenfrom Tanzania Africa showing the firey flash it is known for.
It is also known as Labradorite feldspar.
Weight 26.50 cts app
Size 20 x 17 x 13 mm app
Note photo taken with the rough wet.There are natural fractures in the stone[which is common for this type of material] so it will cut smaller stones.Visit SEDA GEMS to see some stones cut from this parcel.
Sunstone contains inclusions of copper crystals. Sunstone can be found as large as three inches across. The copper leads to varying color within some stones, where turning one stone will result in multiple colors. The more copper within the stone, the darker the complexion
Sunstone is a plagioclase feldspar, which when viewed from certain directions exhibits a brilliant spangled appearance; this has led to its use as a gemstone. It has been found in Southern Norway,tanzania and in some United States localities. It is the official gemstone of Oregon.
GRADING The first factor in grading is the amount of Schiller[a sub -surface iridescent shimmer]The more schiller the less the stone reflects and shimmers as it blocks suns rays.The next grade is for colour as it can be found in red ,green.yellow,pink and orange.
Sunstone with high amounts of schiller are great for carvings.
The optical effect appears to be due to reflections from enclosures of red haematite, in the form of minute scales, which are hexagonal, rhombic or irregular in shape, and are disposed parallel to the principal cleavage-plane. These enclosures give the stone an appearance something like that of aventurine, whence sunstone is known also as “aventurine-feldspar.” The optical effect called shiller and the color in Oregon Sunstone is due to copper. In the middle part of this crystal, it sparks a lot, and usually has a dark color in the middle, and the color becomes lighter as it becomes the outer part.
More Information
运输商 | 运送至:国家 | 运送到世界其他地区 |
---|---|---|
FedEx | $12.00 / :几天天 | $39.00 / :几天天 |
:国家
FedEx 对包含 2 或更多商品的订单折扣为 $12.00
世界其他地区
FedEx 对包含 2 或更多商品的订单折扣为 $39.00
|
||
Registered Shipping | $9.00 / :几天天 | $16.00 / :几天天 |
:国家
Registered Shipping 对包含 2 或更多商品的订单折扣为 $9.00
世界其他地区
Registered Shipping 对包含 2 或更多商品的订单折扣为 $16.00
|
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积极的
Beautiful agate piece , and as always fast efficient service from Sedagems
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积极的
Gorgeous stones, very happy
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积极的
Gorgeous stone, very happy